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Doppler Pro

$1,499.99
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650b all-condition bikes without limits

The Doppler is the ideal all-conditions bike for commuting, extended tours or off-road excursions! For distance riding the Doppler delivers with comfy large-volume 650b tires, full-coverage fenders and full appointments for racks & extra bottles. The Doppler also happily accepts 650x2.2” MTB tires with the fenders removed for when you want to really get off the beaten path.

Key Features
  • Semi-compact geometry
  • Breezer butted chromoly frame with BSA threaded bottom bracket, Breeze-Thru dropout and Apex disc brake mount
  • Breezer butted chromoly 100x12mm thru-axle fork with side water bottle, fender and rack mounts
  • Tubeless-compatible 650b wheelsets

Breezer Compact Geometry

BREEZER COMPACT GEO: Joe created the compact frame geometry with the goal of having the smallest frame possible while using longer-length parts like seatposts so bikes properly fit riders. The benefits were both to save weight and increase stiffness for pedaling by having shorter frame tubes. Before this road frames were traditionally very tall and used short seat posts. This was problematic because the small-diameter steel tubes would flex very easily. Joe’s geometry made the frames much more agile while also offering greater maneuverability both on and off road.

Breeze-In Dropouts

BREEZE-IN DROPOUTS: Joe Breeze’s iconic Breeze-In dropouts offer twice the rigidity and half the weight of standard dropouts; after almost three decades they are still used by custom frame builders to this day. The hooded shape was a breakthrough in design that allowed two major advantages over traditional cast or forged dropouts. First was a much stronger connection between the chainstay & seatstay tubes to the dropout and the second was the ability to save weight by using less material for the forging. Breeze-Ins also enable the tubing length to extend as close as possible to the rear axle and avoid using heavy and stiff CNC yokes or mounting plates keeping the tubing the star of the show and the ride quality as high as possible. Now made for both quick-release and thru-axle applications, Breeze-In dropouts improve shifting, wheel changes, and of course, ride quality.

Breezer Steel

BREEZER STEEL 4130 CROMO: The material Joe started with, and still the staple material for most Breezer bikes. Chromoly tubing has earned its place in cycling’s list of top-rated materials as it offers incredible strength-to-weight properties, up to 5 times the fatigue & tensile strength of 6061 aluminum, while also offering excellent ride quality. Add to this the ability to repair the material after welding and you can understand why adventure riders have trusted this material most to safely carry them around the world for decades.

Multi-Mount Capability

Multi-Mount Capability: A signature feature on all adventure models. Frames and forks come designed with multiple mounting options for racks, fenders and bottle cages.  These features allow you to fully customize & personalize your Breezer for the type of riding you love most.  Whether it’s loading up with five water bottles to traverse across barren wastelands or outfitting some new waterproof bags on front & rear racks for a weekend bikepacking trip, Breezer has you covered! 

Summary

Doppler Pro

$1,499.99
  • Shimano Tiagra 2x10
  • FSA Omega crankset 48-32 crankset with 11-34t cassette
  • TRP HYRD mechanically actuated hydraulic disc brake
  • WTB Horizon 650bx47 tires and WTB STi23 rims

Technical Specifications

Sizes Semi-Compact: 49cm, 52cm, 54cm, 56cm, 58cm, 60cm
Color(s) Aurora black
Frame Breezer butted-chromoly steel, 44mm headtube, BSA Threaded BB, 142 x 12mm
Fork Chromoly disc, 1 1/8", rack / fender & side bottle mounts, 100 x 12mm through-axle
Crankset Oval 300, 48/32T
Bottom Bracket Praxis BSA M24
Pedals N/A
Front Derailleur Shimano Tiagra
Rear Derailleur Shimano Tiagra
Shifters Shimano Tiagra, 2x10-speed
Cassette Shimano, HG500, 11-34T, 10-speed
Chain Shimano CN-4601 10-speed
Wheelset 650B WTB ST Light i23 disc, tubeless compatible, 14g SS spokes, 32H
Tires WTB Venture TCS Tubeless Ready, 650 x 47c, folding bead
Brakeset Tektro HY/RD C hydraulic disc, 160mm rotor
Brake Levers Shimano Tiagra
Headset FSA 1 1/8”, No.10 ZS44
Handlebar Breezer B-Road, 6061 alloy, 31.8mm clamp, 133mm drop
Stem Breezer B-Road, 3D-forged 6061 stem body, +/-7°
Tape Breezer Texture Plus, made from recycled material
Saddle WTB Volt Comp 142x265, steel rail
Seatpost Breezer, 6061 alloy, 27.2mm diameter
Headlight N/A
Weight tbd

Geometry

Doppler Pro
Size(Semi-Compact Frame) XS S M L XL XXL
Bike Size(Semi-Compact Frame) 49cm 52cm 54cm 56cm 58cm 60cm
A Seat Tube, Center to Top 49 52 54 56 58 60
C Top Tube, Effective 518 545 560 570 585 600
D Head Tube Length 100 120 145 160 175 190
E Seat Tube Angle 75° 74° 73° 73° 72.5° 72°
G Head Tube Angle 68° 70° 70° 70° 71.5° 72°
H Chainstay Length 450 450 450 450 450 450
I Wheelbase 1058 1059 1067 1078 1070 1078
J Bottom Bracket Drop 68 68 65 65 62 62
K Fork Offset 50 50 50 50 50 50
M Stack 504 528.9 551.7 565.7 575.5 592.7
N Reach 374.4 382.4 386.4 392.1 400.2 407.4
O Standover na na na na na na
Stem mm 80 90 100 110 110 120
Handlebar Width cm 40 42 44 46 46 46
Crank mm 170 172.5 172.5 175 175 175
Wheel Size 650b 650b 650b 650b 650b 650b
Seat Post Diameter mm 27.2 27.2 27.2 27.2 27.2 27.2

This model features: Compact Geometry

Joe created the compact frame with the goal of having as small of frame possible while using longer-length parts like seatposts and stems to allow the bikes to properly fit riders. The benefit was both to save weight and increase stiffness for pedaling by having shorter frame tubes.
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Sizing

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